Math Chap 3 Test

1.

5 points

Simplify the expression:

7( 4 + a) + 5

28a+ 5

7a - 33

7a + 33

4a + 35

2.

5 points

Simplify the expression:

6n + 7 – n - 6

7n + 1

7n - 1

5n - 1

5n + 1

3.

5 points

Simplify the expression:

−1/2 (8n + 6) + 2n

2n - 3

2n + 3

-2n + 3

-2n - 3

4.

5 points

Find the perimeter of a quadrilateral that has sides of:

4x, (2x - 7), 5x, and (x + 10)

12x + 17

12x - 17

12x +3

12x - 3

5.

5 points

Factor the expression using the GCF:

9x - 36

3 (3x - 12)

9 (x + 4)

9 (x - 4)

3 (3x + 12)

6.

5 points

Factor out the coefficient of the variable:

1/4b - 3/4

1/4 (b - 3)

1/4 (b - 3/4)

1/4 (b + 3)

3/4 (b - 1/4)

7.

5 points

Find the sum:

(3p – 5) + (5p – 8)

8p + 13

-8p + 13

8p - 13

-8p - 13

8.

5 points

Find the sum:

(-2h + 1) + 2(4h – 3)

6h - 5

-6h - 5

6h + 5

-6h + 5

9.

5 points

Find the difference:

(4y + 5) – ( y – 3)

5y - 8

5y + 8

3y + 8

3y - 8

10.

5 points

A number is doubled, then decreased by 24. The result is 66.

Which equation below would be used to solve this problem?

24x - 2 = 66: The answer is 45

2x + 24 = 66; The answer is 21

2x - 24 = 66; The answer is 21

2x - 24 = 66; The answer is 45

11.

5 points

What would be the steps in solving this equation?

5(2b - 3) = 55

distribute, subtract 15, multiply by 10.

Parenthesis, multiply by 10, subtract 15

subtract 15, divide by 10, multiply by 2

distribute, add 15, divide by 10.

12.

5 points

Guess My Number.

A number is divided by -3, then increased by 52. The result is 61.

3

-3

27

-27

13.

5 points

Guess My Number:
8 more than twice a number is -16. Find the number.

-12

16

-16

12

14.

5 points

Guess My Number:
One third of a number, decreased by 12, is -9. Find the number.

9

3

-9

-3

15.

5 points

A DJ charges $175 per hour, plus $125 for party supplies. At the end of the party, you owe him $1000. How many hours did he play?

5

6

4

7

16.

5 points

It costs $4.25 to rent bowling shoes. Each game costs $2.75. You have $20.75. How many games can you bowl?

7

6

5

8

17.

5 points

A cell phone company charges a monthly fee plus $0.20 for each text message. The monthly fee is $45.00 and you owe $70.20. How many text messages did you have?

126

122

162

116

18.

5 points

The Cable Company charges a monthly fee of $55. Each movie rental is $1.99. You owe $78.88. How many movies did you rent?

10

12

14

8

19.

5 points

It costs $7 to enter the fair. Each ride costs $2.50. You have $44.50. How many rides can you go on? Choose the correct equation and answer.

7 + 2.50r = 44.50; answer is 15 rides

7r - 2.50 = 44.50; answer is 15 rides.

7 - 2.50r = 44.50; answer is 20

2.50 + 7r = 44.50; answer is 6

20.

5 points

Lisa wants to buy some CD’s, each costing $11.99, and a DVD that costs $24. She has $95.94 to spend. Write and solve an equation to find how many CD’s she can buy.

24x - 11.99 = 95.94; She can buy 4.5 Cd's

11.99x + 24 = 95.94; She can buy 6 Cd's

24x + 11.99 = 95.94; She can buy 3.5 Cd's

11.99x - 24 = 95.94; She can buy 10 Cd's